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RE: engineering software[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: "'seaint(--nospam--at)seaint.org'" <seaint(--nospam--at)seaint.org>
- Subject: RE: engineering software
- From: Waterman Drinkwater <Drinkwater(--nospam--at)EQUATION.COM>
- Date: Fri, 12 Nov 1999 10:51:37 -0500
> ---------- > From: Rex Donahey[SMTP:rdonahey(--nospam--at)thermomass.com] > Reply To: seaint(--nospam--at)seaint.org > Sent: Thursday, November 11, 1999 4:03 PM > To: seaint(--nospam--at)seaint.org > Subject: RE: engineering software > > I'm amazed that STAAD still exists. One would hope that such an > unreliable > program would be driven from the marketplace. Structural engineers, of > all > people, should demand quality tools. > > > Speaking of quality tools, it would be better to compare more. We are going to the next century. How many software vendors can keep upgrading their software to meet the future techniques? That is a big question to consider the potential and quality of software vendor. You can check your structural software, and find out more. (1) Asynchronous parallel solvers: Parallel processing was introduced in 1970s. Parallel processing allows an application to use all the CPUs to speed up and accelerate computing. NSF, DOE, ,,, have supported many researches in parallel processing. Undoubtedly, parallel processibg is a trend for scientific and engineering computing. Does your structural software provide this feature? Most structural software mentioned in the list is more than 10-year-old. When will your software vendor provide you with parallel processing power? If your software does not have this feature, what kind of computer is suitable for you? The answer is simple "high-end computer is not for you, and multiprocessor computer is a waste for you." There is a young package, IFAS, that has the most advanced asynchronous parallel solvers for static, dynamic, and FE analysis of effective length factors. On a single CPU computer, IFAS run as usual. On multiprocessors, IFAS can use all the CPUs to accelerate computing. (2) Parallel visualization: Speaking of graphical representation, is your structural software able to use all the CPUs to draw graphics? When will your software vendor provide you with this feature? IFAS is able to use all the CPUs to implement parallel visualization. High performance. (3) User-friendly environment: This is an important factor to consider a package. The preprocessor of IFAS has 4.8-mega bytes of executible, and postprocessor has 4.4 mega bytes. Is there any package bigger than IFAS? (4) partially rigid analysis: This may be the method for structural analysis and design in the next century. When will your software vendor provide this feature? IFAS already provide this powerful feature, partially rigid static analysis and partially rigid dynamic analysis. Presently, structural professionals simply make an assumption that connection is perfect rigid, but they never check if their assumption is OK in their final design. It is wrong for structural professionals to ignore the final verification on the assumption. You can recall many engineering designs have an assumption in the beginning, but the final design checks if the assumption is valid. If the assumpiton does not hold in the design, a new assumption must be applied to start another analysis and design until the assumption is OK in the final design. However, the structural method we apply today never checks if the assumption is valid in the final design. The tomorrow method, partially rigid analysis, can provide a better and accurate analysis for safer design. IFAS already has this new method. If you like to know quality tools, please compare more. IFAS is young, not well-known. Free evaluation copy can be downloaded at http://sites.netscape.net/ifasusa/index.html or http://homepages.msn.com/RedmondAve/w_drinkwater Distributors are welcome.
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